ATMEGA644A-AU Atmel, ATMEGA644A-AU Datasheet - Page 380
ATMEGA644A-AU
Manufacturer Part Number
ATMEGA644A-AU
Description
IC MCU AVR 64K FLASH 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA644A-AU
Manufacturer:
Atmel
Quantity:
135
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28.2.8
8272A–AVR–01/10
Pin Driver Strength
Figure 28-70. ATmega164PA: I/O Pin Output Voltage vs. Sink Current (V
Figure 28-71. ATmega164PA: I/O Pin Output Voltage vs. Sink Current (V
164A/164PA/324A/324PA/644A/644PA/1284/1284P
0.8
0.6
0.4
0.2
0.6
0.5
0.4
0.3
0.2
0.1
1
0
0
0
0
4
4
8
8
I
I
OL
OL
(mA)
(mA)
12
12
16
16
CC
CC
= 3V).
= 5V).
20
20
-40 °C
-40 °C
85 °C
25 °C
85 °C
25 °C
380
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